不同有机物料配施化肥对植烟土壤不同形态有机碳的影响

发布时间：2018-07-15 15:34

【摘要】：2014~2015年,采用田间定位试验研究了不同有机物料配施化肥对烤烟移栽后45 d和移栽后90 d土壤不同形态有机碳的影响,设置的五种处理分别为单施化肥(T_1)、腐熟麦秸秆配施化肥(T_2)、生物炭配施化肥(T_3)、饼肥配施化肥(T_4)、牛粪配施化肥(T_5)。结果表明:T_5对土壤的有机碳(T_OC)、微生物量碳(MBC)、易氧化碳(LOC)、可溶性有机碳(DOC)含量的提高显著高于其它处理。T_1对土壤可矿化碳(PMC)含量的提高显著高于其它处理,T_3次之。在移栽后45 d,T_2和T_4较T_1能显著提高土壤T_OC含量分别为7.193%、2.209%,MBC含量分别为20.47%、30.86%、DOC含量分别为1.356%、4.879%和LOC含量分别56.49%、82.58%。移栽后90 d,T_2和T_4较T_1能显著提高MBC含量分别为20.94%、18.87%,DOC含量分别为40.80%、30.22%。通过主成分分析可知,各处理对植烟土壤不同形态有机碳含量的影响分别表现为:移栽后45 d时,T_5T_4T_2T_3T_1;移栽后90 d时,T_5T_4T_3T_2T_1。通过聚类分析可知,各处理对植烟土壤不同形态有机碳含量的影响都可分为3类:移栽后45 d时:第一类为T_5,第二类包括T_2、T_4,第三类包括T_1、T_3;移栽后90 d时:第一类为T_5,第二类包括T_2、T_4、T_3,第三类为T_1。表明植烟时牛粪最宜做基肥,饼肥和腐熟麦秸秆次之。
[Abstract]:During the period of 2014-2015, the effects of different organic materials and chemical fertilizers on soil organic carbon in different forms of flue-cured tobacco were studied 45 days after transplanting and 90 days after transplanting. The five treatments were single fertilizer (T _ 1), rotting wheat straw with chemical fertilizer (T _ 2), biochar with chemical fertilizer (T _ 3), cake fertilizer with fertilizer (T _ 4), cow manure with fertilizer (T _ 5). The results showed that the contents of organic carbon (TOC), microbial biomass carbon (MBC), easily oxidized carbon (LOC) and soluble organic carbon (DOC) in soil were significantly higher than those in other treatments. At 45 days after transplanting, TCI _ 2 and TCO _ 4 significantly increased the content of TOC in soil by 7.193 and 2.209, respectively, and the content of MBC was 20.47 and 30.86%, respectively, and the content of DOC was 1.3566.879% and the content of LOC was 56.49% and 82.58, respectively. 90 days after transplanting, T _ 2 and T _ 4 could significantly increase the MBC content by 20.94 and 18.87, respectively, and the DOC contents were 40.80 and 30.22, respectively. According to principal component analysis, the effects of different treatments on the content of organic carbon in different forms of tobacco planting soil were as follows: at 45 days after transplanting, T5T4T2T3T3T, and T5T4T3T2T2T, respectively, at 45 days after transplanting, and T5T4T3T2T2T1 at 90 days after transplanting. By cluster analysis, we can see, The effects of different treatments on organic carbon contents in different forms of tobacco planting soils can be divided into three categories: T5 at 45 days after transplanting, T5 in the first category, T2T4 in the second category, T1T3 in the third category; T5 in the first category at 90 days after transplanting; T2T4T3 in the third category; T1 in the third category. The results showed that cow manure was the most suitable base fertilizer when tobacco was planted, followed by cake fertilizer and cooked wheat straw.
【作者单位】：河南农业大学烟草学院;郑州大学药学院;重庆烟草工业有限责任公司;
【基金】：河南省科技厅科技攻关项目(No.142102110133) 减轻烟草重金属污染的植物修复技术研究(No.201304)资助
【分类号】：S158.3;S572

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